#include<bits/stdc++.h>
using namespace std;
int b[100001];
int main()
{
    freopen("duel.cpp.in","r",stdin);
    freopen("duel.cpp.out","w",stdout);
    int n,i,l=1,m,s;
    cin>>n;
    m=0;
    for(i=1;i<=n;i++)
    {
        cin>>s;
        b[s]++;
        m=max(m,b[s]);
    }
    printf("%d",m);
    return 0;
}
